VirtualBox

source: vbox/trunk/src/bldprogs/bin2c.c@ 63206

Last change on this file since 63206 was 62537, checked in by vboxsync, 8 years ago

(C) 2016
  • Property svn:eol-style set to native
  • Property svn:keywords set to Id Revision
File size: 7.9 KB
Line 
1/* $Id: bin2c.c 62537 2016-07-22 19:32:06Z vboxsync $ */
2/** @file
3 * bin2c - Binary 2 C Structure Converter.
4 */
5
6/*
7 * Copyright (C) 2006-2016 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18
19/*********************************************************************************************************************************
20* Header Files *
21*********************************************************************************************************************************/
22#include <ctype.h>
23#include <stdio.h>
24#include <string.h>
25#include <stdlib.h>
26#include <sys/types.h>
27
28
29/**
30 * File size.
31 *
32 * @returns file size in bytes.
33 * @returns 0 on failure.
34 * @param pFile File to size.
35 */
36static size_t fsize(FILE *pFile)
37{
38 long cbFile;
39 off_t Pos = ftell(pFile);
40 if ( Pos >= 0
41 && !fseek(pFile, 0, SEEK_END))
42 {
43 cbFile = ftell(pFile);
44 if ( cbFile >= 0
45 && !fseek(pFile, 0, SEEK_SET))
46 return cbFile;
47 }
48 return 0;
49}
50
51static int usage(const char *argv0)
52{
53 fprintf(stderr,
54 "Syntax: %s [options] <arrayname> <binaryfile> <outname>\n"
55 " -min <n> check if <binaryfile> is not smaller than <n>KB\n"
56 " -max <n> check if <binaryfile> is not bigger than <n>KB\n"
57 " -mask <n> check if size of binaryfile is <n>-aligned\n"
58 " -width <n> number of bytes per line (default: 16)\n"
59 " -break <n> break every <n> lines (default: -1)\n"
60 " -ascii show ASCII representation of binary as comment\n"
61 " -export emit DECLEXPORT\n"
62 " --append append to the output file (default: truncate)\n"
63 , argv0);
64
65 return 1;
66}
67
68int main(int argc, char *argv[])
69{
70 FILE *pFileIn;
71 FILE *pFileOut;
72 int iArg;
73 size_t cbMin = 0;
74 size_t cbMax = ~0U;
75 size_t uMask = 0;
76 int fAscii = 0;
77 int fAppend = 0;
78 int fExport = 0;
79 long iBreakEvery = -1;
80 unsigned char abLine[32];
81 size_t cbLine = 16;
82 size_t off;
83 size_t cbRead;
84 size_t cbBin;
85 int rc = 1; /* assume the worst... */
86
87 if (argc < 2)
88 return usage(argv[0]);
89
90 for (iArg = 1; iArg < argc; iArg++)
91 {
92 if (!strcmp(argv[iArg], "-min"))
93 {
94 if (++iArg >= argc)
95 return usage(argv[0]);
96 cbMin = 1024 * strtoul(argv[iArg], NULL, 0);
97 }
98 else if (!strcmp(argv[iArg], "-max"))
99 {
100 if (++iArg >= argc)
101 return usage(argv[0]);
102 cbMax = 1024 * strtoul(argv[iArg], NULL, 0);
103 }
104 else if (!strcmp(argv[iArg], "-mask"))
105 {
106 if (++iArg >= argc)
107 return usage(argv[0]);
108 uMask = strtoul(argv[iArg], NULL, 0);
109 }
110 else if (!strcmp(argv[iArg], "-ascii"))
111 fAscii = 1;
112 else if (!strcmp(argv[iArg], "--append"))
113 fAppend = 1;
114 else if (!strcmp(argv[iArg], "-export"))
115 fExport = 1;
116 else if (!strcmp(argv[iArg], "-width"))
117 {
118 if (++iArg >= argc)
119 return usage(argv[0]);
120 cbLine = strtoul(argv[iArg], NULL, 0);
121 if (cbLine == 0 || cbLine > sizeof(abLine))
122 {
123 fprintf(stderr, "%s: '%s' is too wide, max %u\n",
124 argv[0], argv[iArg], (unsigned)sizeof(abLine));
125 return 1;
126 }
127 }
128 else if (!strcmp(argv[iArg], "-break"))
129 {
130 if (++iArg >= argc)
131 return usage(argv[0]);
132 iBreakEvery = strtol(argv[iArg], NULL, 0);
133 if (iBreakEvery <= 0 && iBreakEvery != -1)
134 {
135 fprintf(stderr, "%s: -break value '%s' is not >= 1 or -1.\n",
136 argv[0], argv[iArg]);
137 return 1;
138 }
139 }
140 else if (iArg == argc - 3)
141 break;
142 else
143 {
144 fprintf(stderr, "%s: syntax error: Unknown argument '%s'\n",
145 argv[0], argv[iArg]);
146 return usage(argv[0]);
147 }
148 }
149
150 pFileIn = fopen(argv[iArg+1], "rb");
151 if (!pFileIn)
152 {
153 fprintf(stderr, "Error: failed to open input file '%s'!\n", argv[iArg+1]);
154 return 1;
155 }
156
157 pFileOut = fopen(argv[iArg+2], fAppend ? "a" : "w"); /* no b! */
158 if (!pFileOut)
159 {
160 fprintf(stderr, "Error: failed to open output file '%s'!\n", argv[iArg+2]);
161 fclose(pFileIn);
162 return 1;
163 }
164
165 cbBin = fsize(pFileIn);
166
167 fprintf(pFileOut,
168 "/*\n"
169 " * This file was automatically generated\n"
170 " * from %s\n"
171 " * by %s.\n"
172 " */\n"
173 "\n"
174 "#include <iprt/cdefs.h>\n"
175 "\n"
176 "%sconst unsigned char%s g_ab%s[] =\n"
177 "{\n",
178 argv[iArg+1], argv[0], fExport ? "DECLEXPORT(" : "", fExport ? ")" : "", argv[iArg]);
179
180 /* check size restrictions */
181 if (uMask && (cbBin & uMask))
182 fprintf(stderr, "%s: size=%ld - Not aligned!\n", argv[0], (long)cbBin);
183 else if (cbBin < cbMin || cbBin > cbMax)
184 fprintf(stderr, "%s: size=%ld - Not %ld-%ldb in size!\n",
185 argv[0], (long)cbBin, (long)cbMin, (long)cbMax);
186 else
187 {
188 /* the binary data */
189 off = 0;
190 while ((cbRead = fread(&abLine[0], 1, cbLine, pFileIn)) > 0)
191 {
192 size_t j;
193
194 if ( iBreakEvery > 0
195 && off
196 && (off / cbLine) % iBreakEvery == 0)
197 fprintf(pFileOut, "\n");
198
199 fprintf(pFileOut, " ");
200 for (j = 0; j < cbRead; j++)
201 fprintf(pFileOut, " 0x%02x,", abLine[j]);
202 for (; j < cbLine; j++)
203 fprintf(pFileOut, " ");
204 if (fAscii)
205 {
206 fprintf(pFileOut, " /* 0x%08lx: ", (long)off);
207 for (j = 0; j < cbRead; j++)
208 /* be careful with '/' prefixed/followed by a '*'! */
209 fprintf(pFileOut, "%c",
210 isprint(abLine[j]) && abLine[j] != '/' ? abLine[j] : '.');
211 for (; j < cbLine; j++)
212 fprintf(pFileOut, " ");
213 fprintf(pFileOut, " */");
214 }
215 fprintf(pFileOut, "\n");
216
217 off += cbRead;
218 }
219
220 /* check for errors */
221 if (ferror(pFileIn) && !feof(pFileIn))
222 fprintf(stderr, "%s: read error\n", argv[0]);
223 else if (off != cbBin)
224 fprintf(stderr, "%s: read error off=%ld cbBin=%ld\n", argv[0], (long)off, (long)cbBin);
225 else
226 {
227 /* no errors, finish the structure. */
228 fprintf(pFileOut,
229 "};\n"
230 "\n"
231 "%sconst unsigned%s g_cb%s = sizeof(g_ab%s);\n"
232 "/* end of file */\n",
233 fExport ? "DECLEXPORT(" : "", fExport ? ")" : "", argv[iArg], argv[iArg]);
234
235 /* flush output and check for error. */
236 fflush(pFileOut);
237 if (ferror(pFileOut))
238 fprintf(stderr, "%s: write error\n", argv[0]);
239 else
240 rc = 0; /* success! */
241 }
242 }
243
244 /* cleanup, delete the output file on failure. */
245 fclose(pFileOut);
246 fclose(pFileIn);
247 if (rc)
248 remove(argv[iArg+2]);
249
250 return rc;
251}
Note: See TracBrowser for help on using the repository browser.

© 2023 Oracle
Contact – Privacy policy – Terms of Use